1) Create a Pinterest board. Start saving all the homes and rooms you love (even if they seem to clash) then, recognize a common pattern in the images you saved.
2) Pick 2-3 elements that are must haves, then let everything else you choose simply compliment those elements.
3) In order to create a space that feels genuine to you, & a style that you'll love for years to come, avoid big trending styles and colors. Remember: your style isn't a "trend" and that's a good thing!